Honestly? Waste of money and space.
You would always be better off eating the fruit and vegetables, you get the fibre, the fullness... and it takes say 8 oranges to get a glass... you wouldnt eat 8 whole oranges in one go, but you just drank the calories of 8 oranges, so I dont think juicing is much good,.
Smoothies however, much better, as you actually use the whole fruit or vegetable, so get the benefits of the fibre and so on. Why not look into that instead?